5645191 has 2 divisors, whose sum is σ = 5645192. Its totient is φ = 5645190.

The previous prime is 5645177. The next prime is 5645203. The reversal of 5645191 is 1915465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5645191 - 2⁷ = 5645063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5645161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822595 + 2822596.

It is an arithmetic number, because the mean of its divisors is an integer number (2822596).

Almost surely, 2^5645191 is an apocalyptic number.

5645191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5645191 is an equidigital number, since it uses as much as digits as its factorization.

5645191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 5645191 is about 2375.9610687046. The cubic root of 5645191 is about 178.0572029255.

The spelling of 5645191 in words is "five million, six hundred forty-five thousand, one hundred ninety-one".